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Status of aquatic organisms resources and their environments in Yangtze River system(2.1.-2.2.)⋆

Aquaculture and Fisheries 2024年第5期9卷 833-850页

作者： Haile Yang Li Shen Yongfeng He Huiwu Tian Lei Gao Jinming Wu Zhigang Mei Nian Wei Lin Wang Tingbing Zhu Feifei Hu Jinling Gong Hongchun Du Xinbin Duan Huatang deng Daoqun Wang Fengyue Zhu Yunfeng Li Fan Wu Huijun Ru Yan Zhang Junyi Li Junlin Yang Yuntao Zhou Dongdong Fang Yinping Wang Danqing Lin Yanping Yang Peijie Li Silei Liu Jian Yang Ping Zhuang Sikai Wang Tao Zhang Gang Yang Wenbo Yang Lilai Yuan Kun Cao Shuo {1. Huiyuan Liu Zhiqiang Liang Chongrui Wang Hong Li Xiping Yuan Xin Yang Yilong Fu Yanping Zhang Haixin Zhang Zhiying Tao Sheng Wang Xiaoping Gao Binsong Jin Kemao Li Guojie Wang Shenglong Jian Yingqin Li Chenjiang {1.e Chunyun Lei Shaowei {1.e Yi Sun Bin Zhu Ke Shao Xingkun Hu Meihua Xiong Jun Du Bin He Tao Yan Yingying Huang Yuanchao Zou Biwen Xie Yongming Wang Bin Li Fei Liu Yaoyao Zhang Fei Fan Zhijian Wang Jing Huang Haoran Gu Hailong Ge Yan Dan Yan Li Shuqiao Wang Chuang Zhang lu Zhou {1.e Wang Sheng Zeng Yan Xiang {1.gang He Jianhui Qin Chengxing Xia Jie Hou Yifu Shi Lifang Gao Zhiqiang Zhu Hongbao Shen Yun Du {1.ejun Duan Jiawu Xiong Deguo Yang Shaoping Liu Zhaohui Ni Hui Zhang Kai Liu Feng Zhao Yingren Li Jianwei Wang Qiwei Wei Yangtze River Fisheries research {1. Chinese Academy of Fishery SciencesWuhan430223China institute of Hydrobiology Chinese Academy of SciencesWuhan430072China Fishery Resource and Environment research Center Chinese Academy of Fishery SciencesBeijing100141China Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization Ministry of Agriculture and Rural AffairsFreshwater Fisheries Research CenterChinese Academy of Fishery SciencesWuxi214081China East china Sea Fisheries {1. {2. Chinese Academy of Fishery SciencesShanghai200090China institute of Fisheries Engineering Chinese Academy of Fishery SciencesBeijing100141China Hunan Fisheries Science institute Changsha410153China Jiangxi Fisheries research {1. Nanchang330039China Jiujiang Academy of Fishery Sciences Jiujiang332000China School of Life Sciences Nanchang UniversityNanchang330031China Qinghai Provincial Fishery Technology Extension Center Xining810012China Yunnan Academy of Fishery Sciences Kunming650111China institute of Hydroecology Ministry of Water Resources and Chinese Academy of SciencesWuhan430079China Fisheries institute Sichuan Academy of Agricultural SciencesChengdu611731China School of Life Sciences Neijiang Normal UniversityNeijiang641100China School of Life Sciences Southwest UniversityChongqing400715China Chongqing Fishery Sciences research {1. Chongqing401120China Guizhou Fisheries research {1. Guiyang550025China College of Fisheries Huazhong Agricultural UniversityWuhan430072China Hubei Fisheries Science research {1. Wuhan430070China Shaanxi Fisheries research {1. Xi’an710086China Innovation Academy for Precision Measurement Science and Technology Chinese Academy of SciencesWuhan430077China Nanjing institute of Geography and Limnology Chinese Academy of SciencesNanjing210008China Central South Inventory and Planning institute of State Forestry and Grassland Administration Changsha410014China

The Yangtze River is the mother river of *** promote the aquatic ecosystem protection of the great river,the Project of Yangtze Fisheries Resources and Environment Investigation(2.1.-2.2.)supported by the Ministry of Agriculture and Rural Affairs,*** carried out by 2. institutes and universities that located in the Yangtze River basin surveys the status of(1.fish species composition and spatial distribution,(2.current fish abundance,(3)endangered fishes,(4)Yangtze finless porpoise,(5)aquatic eco-environments,(6)water-level fluctuation areas,(7)capture fisheries and recreational fisheries of the Yangtze River mainstream and 1. of its main tributaries,including Yalong River,Heng River,Min River(including Dadu River),Chishui River,Tuo River,Jialing River,Wu River,Han River,Dongting Lake and Poyang *** results showed that there were 443 fish species(belonging to 1.3 genus,37 families,and 1. orders)before 2.1.,but only 32. fish species(including 1. new recorded exotic species)were recorded in the project of *** them,Cyprinus carpio,Carassius auratus,Hypophthalmichthys molitrix,Pelteobagrus fulvidraco,Coilia brachygnathus,Silurus asotus,Saurogobio dabryi,Ctenopharyngodon idellus,Pelteobagrus nitidus,Hemiculter leucisculus,Siniperca chuatsi,Coreius heterodon,Culter alburnus,Parabramis pekinensis,and Aristichthys nobilis were the dominant species across the whole Yangtze River *** is estimated that there were 886 million individuals weighing 1.0}.8 million kg,merely equivalent to 2..3%of the resources in 1.50s,30.9%of the resources in 1.60s,or 58.7%of the resources in *** the new list of protected fishes that recorded in the Yangtze River system,only 1. of 2. were collected in this project of *** gladius has been affirmed to be Extinct by International Union for Conservation of Nature(IUCN).The wild individuals of Tenualosa reevesii and luciobrama macrocephalus have disappeared for many years and maybe have been extinct

关键词： Fishes Yangtze finless porpoise Resources Aquatic ecosystem Fisheries Background investigation Yangtze river system

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Bioturbation enhanced petrophysical properties in the Ordovician carbonate reservoir of the Tahe oilfield,Tarim Basin,NW china

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Journal of Palaeogeography 2022年第1期11卷 31-51页

作者： Yong-Bin Niu Meng-Yuan Cheng Li-Jun Zhang Jian-Hua Zhong Sheng-Xin Liu Duan Wei Zi-lu {1. Pei-Jun Wang Key Laboratory of Biogenic Traces and Sedimentary Minerals of Henan Province Jiaozuo 454003Henan ProvinceChina Collaborative Innovation Center of Coalbed Methane and Shale Gas for Central Plains Economic Region Henan Polytechnic UniversityJiaozuo 454003Henan ProvinceChina School of Geoscience China University of Petroleum(East China)Qingdao 266580Shandong ProvinceChina institute of Geomechanics Chinese Academy of Geological SciencesBeijing 100081China School of Energy Resource China University of Geosciences(Beijing)Beijing 100083China development Affairs of Tarim Oilfield PetroChinaKorla 841000Xinjiang Uygur Autonomous RegionChina

Bioturbation plays an important role in enhancing the reservoir capacity of tight *** study aims to understand the alteration mechanism and effects of bioturbation on oil and gas reservoirs,to clarify the key control factors and constraints influencing the production of *** petrophysical characteristics of bioturbation and host sediments in carbonate rocks,such as mineral composition,pore spaces,porosity and permeability,were studied based on the detailed observation and description of the Ordovician cores from the Tahe *** effect of bioturbation on petrophysical properties of carbonate rocks were carefully *** results show:(1.Two types of bioturbation,Thalassinoides-like burrows and Planolites-like burrows,mainly occur in the Ordovician cores of the Tahe oilfield,ranging from the Lower-Middle Ordovician Yingshan Formation to the Middle Ordovician Yijianfang *** burrow-fills are mainly composed of dolomite with subhedral and euhedral *** host sediments mainly consist of micrite.({1.The pores in the host sediments are poorly developed and are incapable of forming effective reservoir ***,well-developed intercrystalline pores among dolomites and microfractures in bioturbated sediments with better connectivity can form effective pore *** results of porosity and permeability show that the host sediments without bioturbation are characterized by poor porosity and ***,with the increase of bioturbation intensity,the porosity of the bioturbated sediments firstly increases and then decreases,whereas the permeability increases all the time.(3)Multiple burrows overprinted in the Ordovician carbonate rocks,forming a large-scale bioturbated carbonate rocks with lateral continuity and vertical connectivity,due to the suitable sedimentary setting,ecological conditions,favorable spatiotemporal sediment matching,and abundant organism-substrate ***,diagenesis(particular

关键词： Bioturbation Carbonate reservoir Diagenesis Ordovician Tahe oilfield Tarim Basin

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Inverted U-Shaped Associations between Glycemic Indices and Serum Uric Acid Levels in the General Chinese Population:Findings from the china Cardiometabolic Disease and Cancer Cohort(4C)Study

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Biomedical and Environmental Sciences 2021年第1期34卷 9-18页

作者： ZHU Yuan Yue ZHENG Rui Zhi WANG Gui Xia CHEN Li SHI Li Xin SU Qing xu Min xu Yu CHEN Yu Hong YU xue Feng YAN Li WANG Tian Ge ZHAO Zhi Yun QIN Gui Jun WAN Qin CHEN Gang GAO Zheng Nan SHEN Fei Xia luO Zuo Jie QIN Ying Fen HUO Ya Nan LI Qiang YE Zhen ZHANG Yin Fei LIU Chao WANG You Min WU Sheng Li YANG Tao deng Hua Cong ZHAO Jia Jun CHEN lu lu MU Yi Ming TANG xu Lei HU Ru Ying WANG Wei Qing NING Guang LI Mian lu Jie Li BI Yu Fang Department of Endocrine and Metabolic Diseases Shanghai Institute of Endocrine and Metabolic DiseasesRuijin HospitalShanghai Jiao Tong University School of MedicineShanghai 200025China Shanghai National Clinical research Center for Metabolic Diseases Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of the PR ChinaShanghai National Center for Translational MedicineRuijin Hospital.Shanghai Jiao Tong UniversitySchool of MedicineShanghai 200025China The First Hospital of Jilin University Changchun 130021JinlinChina Qilu Hospital of Shandong University Jinan 250012ShandongChina Affiliated Hospital of Guiyang Medical College Guiyang 550004GuizhouChina Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine Shanghai 200092China Tongji Hospital.Tongji Medical College Huazhong University of Science and TechnologyWuhan 430030HubeiChina Sun Yat-sen Memorial Hospital Sun Yat-sen UniversityGuangzhou 510120GuangdongChina The First Affiliated Hospital of Zhengzhou University Zhengzhou 450052HenanChina The Affiliated Hospital of Southwest Medical University Luzhou 646099SichuanChina Fujian Provincial Hospital Fujian Medical UniversityFuzhou 350001FujianChina Dalian Municipal Central Hospital Dalian 116003LiaoningChina The First Affiliated Hospital of Wenzhou Medical University Wenzhou 325000ZhejiangChina The First Affiliated Hospital of Guangxi Medical University Nanning 530021GuangxiChina Jiangxi Provincial People's Hospital Affiliated to Nanchang University Nanchang 330006JiangxiChina The Second Affiliated Hospital of Harbin Medical University Harbin 150086HeilongjiangChina Zhejiang Provincial Center for Disease Control and Prevention Hangzhou 310051ZhejiangChina Central Hospital of Shanghai Jiading District Shanghai 201800China Jiangsu Province Hospital on Integration of Chinese and Western Medicine Nanjing 210028JiangsuChina The First Affiliated Hospital of Anhui Medical University Hefei 230022AnhuiChina Karamay Municipal

Objective The relationship between serum uric acid(SUA)levels and glycemic indices,including plasma glucose(FPG),2.hour postload glucose(2.h-PG),and glycated hemoglobin(HbA1.c),remains *** aimed to explore the associations between glycemic indices and SUA levels in the general Chinese *** The current study was a cross-sectional analysis using the first follow-up survey data from The china Cardiometabolic Disease and Cancer Cohort Study.A total of 1.5,92. community-dwelling adults aged≥40 years underwent the oral glucose tolerance test and uric acid *** nonlinear relationships between glycemic indices and SUA levels were explored using generalized additive *** A total of 30,941.men and 62.361.women were eligible for the current *** additive models verified the inverted U-shaped association between glycemic indices and SUA levels,but with different inflection points in men and *** thresholds for FPG,2.h-PG,and HbA1.c for men and women were 6.5/8.0 mmol/L,1..0/1..0 mmol/L,and 6.1.6.5,respectively(SUA levels increased with increasing glycemic indices before the inflection points and then eventually decreased with further increases in the glycemic indices).Conclusion An inverted U-shaped association was observed between major glycemic indices and uric acid levels in both sexes,while the inflection points were reached earlier in men than in women.

关键词： Cross-sectional study Serum uric acid Glycemic index Glycemic status

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对向靶溅射α″-Fe_(1.)N_2.膜结构及其热稳定性

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天津大学学报（自然科学与工程技术版） 2001年第4期34卷 558-561页

作者：许英华姜恩永王怡侯登录赵慈天津大学理学院天津300072

用对向靶反应溅射法制备了α″- Fe1.6 N2.薄膜 ,用 X射线衍射 (XRD)、透射电子显微镜(TEM)和振动样品磁强计 (VSM)对α″- Fe1.6 N2.的结构、磁性以及结构的热稳定性进行了分析讨论 .结果表明 ,随退火温度的升高 ,α″- Fe1.6 N2.相逐... 详细信息

用对向靶反应溅射法制备了α″- Fe1.6 N2.薄膜 ,用 X射线衍射 (XRD)、透射电子显微镜(TEM)和振动样品磁强计 (VSM)对α″- Fe1.6 N2.的结构、磁性以及结构的热稳定性进行了分析讨论 .结果表明 ,随退火温度的升高 ,α″- Fe1.6 N2.相逐渐分解为 α″- Fe和 γ′- Fe4N两相 .对磁性的分析表明 ,造成饱和磁化强度存在较大差异的原因与其内在的结构差别有很大的关系 .

关键词：饱和磁化强度对向靶溅射 Fe1.N2.膜热稳定性结构

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深层常压页岩气富集机制研究——以涪陵页岩气田白马区块为例

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石油地质与工程 2024年第3期38卷 53-60页

作者：徐向辛志源刘超姚欣欣刘赵毅唐文艳卢坤辉廖添中国石化重庆涪陵页岩气勘探开发有限公司重庆408000 中国石油大学(北京)油气资源与工程全国重点实验室北京102249 中国石化江汉油田分公司勘探开发研究院湖北武汉433124 中国石油长庆油田公司第五采气厂陕西西安710018

目前,我国南方海相页岩气勘探开发主要聚焦在中深层超压背斜,而针对深层常压页岩气富集机制的研究较为薄弱。以白马向斜南斜坡Y1.2.为例,在系统评价五峰组-龙一1.段页岩气赋存状态及储层孔隙结构的基础上,与焦石坝背斜JY1.-4井中深层... 详细信息

目前,我国南方海相页岩气勘探开发主要聚焦在中深层超压背斜,而针对深层常压页岩气富集机制的研究较为薄弱。以白马向斜南斜坡Y1.2.为例,在系统评价五峰组-龙一1.段页岩气赋存状态及储层孔隙结构的基础上,与焦石坝背斜JY1.-4井中深层异常高压页岩气成藏特征对比,结果表明:1.白马向斜五峰组-龙一1.段页岩气含量略高于焦石坝背斜,是典型以吸附气为主的深层常压气藏;2.白马向斜页岩孔隙度明显低于焦石坝背斜,且孔隙度与TOC呈正相关,单位TOC比表面积更高;3)地层抬升幅度小,远离大断裂带,受构造活动影响小,断裂欠发育,构造保存条件较好,来自白马向斜核部页岩气的顺层扩散对斜坡区页岩气藏进行气源补充,是斜坡区页岩气维持常压、最终形成以吸附气为主的深层常压向斜型页岩气富集的关键因素。

关键词：白马向斜页岩气深层常压保存条件页岩气富集规律

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Effect of pomegranate peel polyphenol gel on cutaneous wound healing in alloxan-induced diabetic rats

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Chinese Medical Journal 2013年第9期126卷 1700-1706页

作者： YAN Huan PENG Ke-jun WANG Qiu-lin GU Zheng-yi lu Yao-qin ZHAO Jun {1. Fang LIU Yi-lun TANG Ying deng Feng-mei ZHOU Peng JIN Jia-gui WANG Xin-chun Pharmacy College First Affiliated Hospital of Medical College Shihezi University Shihezi Xinjiang 832002 China Laboratory Medical School Preclinical Medicine School Chengdu Medical College Chengdu Sichuan 610083 China Department of Cardiology Experiment Research Center Department of Pathology First Hospital Affiliated to Chengdu Medical College Chengdu Sichuan 610500 China Urumqi Center for Disease Control and Prevention Urumqi Xinjiang 830026 China Xinjiang institute of Materia Medica Urumqi Xinjiang 830004 China

Background Pomegranate （punica granatum） belongs to the family Punicaceae, and its peel has been used as a traditional Chinese medicine because of its efficacy in restraining intestine, promoting hemostasis, and killing parasites. Pomegranate peel has been reported to possess wound-healing properties which are mainly attributed to its polyphenol extracts. The purpose of this study was to investigate the effect of pomegranate peel polyphenols （PPP） gel on cutaneous wound healing in diabetic rats. Methods AIIoxan-induced diabetic rats were given incisional wounds on each side of the mid-back and then treated daily with PPP gel （polyphenol mass fraction =30%） post-wounding. Rats were sacrificed on days 4, 7, 1., and 2. post-wounding to assess the rates of wound closure, histological characteristics; and to detect the contents of hydroxyproline, production of nitric oxide （NO）, and activities of NO synthase （NOS）, as well as the expressions of transforming growth factor-β1.（TGF-β1., vascular endothelial growth factor （VEGF）, and epidermal growth factor （EGF） in wound tissue. Results Wound closure was significantly shortened when PPP gel was applied to the wounds of diabetic rats. Histological examination showed the ability of PPP gel to increase fibroblast infiltration, collagen regeneration, vascularization, and epithelialization in the wound area of diabetic rats. In addition, PPP gel-treated diabetic rats showed increased contents of hydroxyproline, production of NO, and activities of NOS and increased expressions of TGF-β1. VEGF, and EGF in wound tissues. Conc{1.sion PPP gel may be a beneficial method for treating wound disorders associated with diabetes.

关键词： pomegranate peel polyphenol diabetes wound healing

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负载NY-ESO-1.肽的树突状细胞激发特异性细胞毒性T淋巴细胞反应

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北京大学学报（医学版） 2017年第5期49卷 840-846页

作者：刘静维卢戌杨照敏邓丽娟杨林北京康爱瑞浩生物科技股份有限公司北京101318 国家癌症中心/中国医学科学院北京协和医学院肿瘤医院北京100021

目的:探讨以NY-ESO-1.靶抗原、树突状细胞(dendritic cell,DCs)为抗原载体激发特异性细胞毒性T淋巴细胞(cytotoxic T lymphocytes,CTLs)反应的能力,以明确特异性CTLs的抗肿瘤免疫功能。方法:在临床前实验基础上选择2.1.年1.月至2.1.年1...

目的:探讨以NY-ESO-1.靶抗原、树突状细胞(dendritic cell,DCs)为抗原载体激发特异性细胞毒性T淋巴细胞(cytotoxic T lymphocytes,CTLs)反应的能力,以明确特异性CTLs的抗肿瘤免疫功能。方法:在临床前实验基础上选择2.1.年1.月至2.1.年1.月于中国医学科学院肿瘤医院治疗的符合入选标准的1.例Ⅱ~Ⅲ期HLAA02.1.NY-ESO-1.胃癌患者外周血,分离单个核细胞(peripheral blood mononuclear cells,PBMCs)和外周血淋巴细胞(peripheral blood lymphocytes,PBLs),并诱导出成熟DCs(mature dendritic cell,m DCs);将人工合成的NY-ESO-1.肽负载m DCs后通过流式细胞仪(flow cytometry,FCM)分析细胞表型,检测体外反复致敏PBLs后负载NY-ESO-1.DCs激发特异性CTLs的能力以及CTLs对NY-ESO-1.胃癌细胞的体外杀伤活性,同时患者回输CTLs细胞,每2.1.,共回输2.,检测回输前后患者外周血细胞因子和特异性CTLs水平变化。结果:采用FCM分析DCs细胞表型显示HLA-DR+CD1.c+细胞为93.6%±1.2.,其中CD80+细胞为87.3%±3.6%,CD83+细胞为82.8%±2.5%,CD86+细胞为93.4%±6.4%。患者外周血分离的PBLs经NY-ESO-1.肽负载的DCs反复诱导后,细胞不断增殖,其中未负载多肽的DCs也能促进PBLs增殖,但细胞增殖指数(proliferation index,PI)明显低于负载多肽的DCs,两者比较差异有统计学意义(P1.肽DCs诱导的NY-ESO-1.肽特异性的CTLs比例较未负载NY-ESO-1.肽DCs诱导的对照组明显升高(5.2.±1.2.vs.0.4%±0.1.,P1.胃癌细胞及负载NY-ESO-1.多肽T2.细胞的杀伤率明显高于对照组。输注CTLs细胞后,患者体内血清中细胞因子IFN-γ、IL-2.IL-1.0}平较治疗前显著升高[(1.2.9±1..2.μg/L vs.(46.4±3.1.μg/L;(1.1.3±6.4)μg/L vs.(2..7±1.2.μg/L;(51.3±2.6)μg/L vs.(2..4±1.1.μg/L;P均1.肽的DCs体内外均具有激发特异性CTLs反应的能力,可诱导明显的抗肿瘤免疫效应。

关键词： T淋巴细胞,细胞毒性免疫抗原肽类免疫治疗数突状细胞 NY-ES0-1.肽

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缝洞型碳酸盐岩气藏多类型储集层孔隙结构特征及储渗能力——以四川盆地高石梯—磨溪地区灯四段为例

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吉林大学学报（地球科学版） 2019年第4期49卷 947-958页

作者：王璐杨胜来彭先刘义成徐伟邓惠油气资源与探测国家重点实验室(中国石油大学(北京)) 北京102249 中国石油大学(北京)石油工程教育部重点实验室北京102249 中国石油西南油气田分公司勘探开发研究院成都610041

为全面表征缝洞型碳酸盐岩气藏多类型储集层的孔隙结构特征及储渗能力,借助多种测试技术对四川盆地高石梯—磨溪地区灯四段储集层样品进行分析与研究。首先利用铸体薄片和扫描电镜技术定性刻画了储集层的岩性、物性、储集空间和喉道特征... 详细信息

为全面表征缝洞型碳酸盐岩气藏多类型储集层的孔隙结构特征及储渗能力,借助多种测试技术对四川盆地高石梯—磨溪地区灯四段储集层样品进行分析与研究。首先利用铸体薄片和扫描电镜技术定性刻画了储集层的岩性、物性、储集空间和喉道特征,然后根据高压压汞得到的毛管压力曲线对储集层进行分类,最后基于多尺度CT扫描定量表征了3类样品的二维、三维孔隙结构特征。结果表明:研究区储集空间既有受组构控制的粒间溶孔、粒内溶孔和晶间溶孔等,又有不受组构控制的溶洞、溶缝和构造缝;喉道以缩颈、片状和管束状为主;根据毛管压力曲线特征,储集层可划分为缝洞型、孔洞型和孔隙型;缝洞型大孔隙与溶洞发育,分布均匀且连通性好,喉道粗大且数量较多,微裂缝与溶洞串接呈串珠状分布,沟通了孤立的储集空间,具有最好的储渗能力;孔洞型多尺度孔隙与溶洞发育,储集能力强,喉道粗大但数量较少,连通性较差,各储集空间无法有效沟通,渗流能力受限;孔隙型细小孔隙发育且分布不均,大部分区域被岩石骨架占据,喉道数量少且连通性极差,储渗能力弱。

关键词：孔隙结构缝洞型碳酸盐岩多类型储集层多尺度CT扫描储渗能力四川盆地

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白腐真菌菌丝球形成的物化条件及其对铅的吸附

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环境科学 1999年第1期20卷 33-38页

作者：李清彪吴涓杨宏泉邓旭卢英华洪丽玉蔡立哲厦门大学化工系厦门大学环境科学研究中心

为了探讨影响微生物菌丝球生长的物理化学因素和控制菌丝球大小的规律以及微生物吸附重金属的效果，对黄孢展齿革菌（Ｐｈａｎｅｒｏｃｈａｅｔｅｃｈｒｙｓｏｓｐｏｒｉｕｍ）呈球状体生长和用此菌丝球吸附水溶液中的Ｐｂ２＋进行了研... 详细信息

为了探讨影响微生物菌丝球生长的物理化学因素和控制菌丝球大小的规律以及微生物吸附重金属的效果，对黄孢展齿革菌（Ｐｈａｎｅｒｏｃｈａｅｔｅｃｈｒｙｓｏｓｐｏｒｉｕｍ）呈球状体生长和用此菌丝球吸附水溶液中的Ｐｂ２＋进行了研究．实验结果表明，在培养液ｐＨ值为４．５，孢子悬液浓度为１０６个／ｍｌ，表面活性剂吐温８０的浓度为０．１％，高碳氮和摇床转速为１５０ｒ／ｍｉｎ的条件下，于３９℃下培养３ｄ，形成直径在１．５—１．７ｍｍ范围内的菌丝球，光滑均匀，具有一定机械强度，对Ｐｂ２＋的吸附能力最强．用０．２ｍｏｌ／Ｌ的ＮａＯＨ溶液处理该菌丝球，对２５ｍｇ／Ｌ的铅溶液的吸附率达到了９５％以上，表明用该菌丝球吸附水溶液中的Ｐｂ２＋是可行的．

关键词：白腐真菌菌丝球生物吸附吸附铅废水处理

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黑河流域年NPP时空变化及其对气候因子的响应

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应用基础与工程科学学报 2023年第3期31卷 523-540页

作者：贾路于坤霞邓铭江李鹏李占斌时鹏徐国策西安理工大学西北旱区生态水利国家重点实验室陕西西安710048 西安理工大学旱区生态水文与灾害防治国家林业局重点实验室陕西西安710048

近几十年,生态环境发生明显改变,植被净初级生产力(NPP)成为表征陆地生态系统碳汇状况的重要指标.以中国内陆干旱区黑河流域为研究区,使用1.85~2.1.年逐月栅格NPP、降水和平均气温数据,分别采用Mann-Kendall趋势检验法、Pettitt突变点... 详细信息

近几十年,生态环境发生明显改变,植被净初级生产力(NPP)成为表征陆地生态系统碳汇状况的重要指标.以中国内陆干旱区黑河流域为研究区,使用1.85~2.1.年逐月栅格NPP、降水和平均气温数据,分别采用Mann-Kendall趋势检验法、Pettitt突变点检验法分析年NPP时空变化特征,基于渔网分析和重心转移模型探索不同空间位置上年NPP重心转移对气候因子重心转移的响应规律,同时揭示年NPP与气候因子的相关响应,最后探讨了地貌分布和气候因子对年NPP变化的影响.结果表明:(1.1.85~2.1.年,黑河流域年NPP显著增加和显著减少面积分别占总面积44.98%和35.2.%;(2.黑河流域总面积的80.1.0}区域年NPP变化存在显著突变点,主要发生在1.89~2.1.年;(3)与1.85年相比,2.1.年在全流域分别有2..69%和2..78%网格数目上年NPP重心转移方向与年降水量和年平均气温重心转移方向一致;(4)气候因子和非气候因子对年NPP变化贡献率的平均值分别为1..1.%和83.87%.研究成果有利于了解黑河流域植被碳汇时空特征,从而进一步为黑河流域环境保护政策和规划的制定提供科学依据.

关键词：黑河流域植被净初级生产力(NPP) 碳汇时空变化气候因子响应重心转移

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